| 单词 | window |
| 释义 | window 1 A band of electromagnetic wavelengths that is able to pass through a particular medium with little reflection or absorption. For example, there is a radio window in the atmosphere allowing radio waves of wavelengths 5 mm to 30 m to pass through. This radio window enables radio telescopes to be used on the surface of the earth. 2 A period of time during which an event may occur in order to achieve a desired result. For example a launch window is the period during which a space vehicle must be launched to achieve a planned encounter. |
| 随便看 |
|
物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。